This article shows basic code to integrate spring with Jersey. Jersey has the ability to convert a JAXB annotated class to xml. This code is also included.
Create a new web application and add jersey-core-1.1.5.jar, jersey-server-1.1.5.jar, jersey-client-1.1.5.jar, jsr311-api-1.1.1.jar, asm-3.1.jar, jersey-spring-1.1.5, ,jaxb-api-2.2.jar,jaxb-impl-2.2.3-1.jar
to WEB-INF/lib.
package com.mycompany.rest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import org.springframework.stereotype.Component;
@Component
@Path("/helloWorld")
public class HelloWorld {
@GET
@Produces(MediaType.TEXT_PLAIN)
public String plainHelloWorld() {
return "Hello World";
}
@GET
@Produces(MediaType.TEXT_XML)
public Person sayXMLHello() {
Person person = new Person();
person.setAge(29);
person.setFirstName("harish");
person.setLastName("Choragudi");
return person;
}
@GET
@Produces(MediaType.TEXT_HTML)
public String htmlHelloWorld() {
return " " + "" + "Hello World" + "" + " ";
}
}
package com.mycompany.rest;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class Person {
private String firstName;
private String lastName;
private Integer age;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
The client to test the service
package com.mycompany.rest;
import java.net.URI;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.UriBuilder;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter;
public class RestClient {
public static void main(String[] args) {
ClientConfig config = new DefaultClientConfig();
Client client = Client.create(config);
//Http basic authentication
client.addFilter(new HTTPBasicAuthFilter("username","password"));
WebResource service = client.resource(
UriBuilder.fromUri( "http://localhost:9085/testapplication").build());
System.out.println(service.path("rs").path("helloWorld").accept(
MediaType.TEXT_PLAIN).get(ClientResponse.class).toString());
// Get plain text
System.out.println(service.path("rs").path("helloWorld").accept(
MediaType.TEXT_PLAIN).get(String.class));
// Get XML
System.out.println(service.path("rs").path("helloWorld").accept(
MediaType.TEXT_XML).get(String.class));
// Get HTML
System.out.println(service.path("rs").path("helloWorld").accept(
MediaType.TEXT_HTML).get(String.class));
}
}
In Web.xml<context-param>
<description></description>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<description></description>
<display-name>AppInit</display-name>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>
com.sun.jersey.spi.spring.container.servlet.SpringServlet
</servlet-class>
<init-param>
<param-name>
com.sun.jersey.config.property.resourceConfigClass
</param-name>
<param-value>
com.sun.jersey.api.core.ClasspathResourceConfig
</param-value>
</init-param>
<init-param>
<param-name>
com.sun.jersey.config.property.classpath
</param-name>
<param-value>
WEB-INF/lib
</param-value>
<!-- Use WEB-INF/lib if you have your Service class in a jar file.
WEB-INF/classes is used if you have your service classes in class folder
of your web application
-->
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
If you don't have com.sun.jersey.config.property.resourceConfigClass param value set the exception below is thrown. So make sure you set it.
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not
contain any root resource classes. If you use spring make sure you use <servlet-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</servlet-class> instead of <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
